| Wassertank | water tank cistern |
| Abwassertank | cesspit cesspool septic tank |
| Wassermann | Aquarius Aquarian |
| Wasserstand | water level |
| Wasserbad | bain-marie |
| Wasserbär | water bear |
| Wassergas | water gas |
| Wasserhund | water dog |
| Wasserball | water polo ball water polo |
| Wasserbau | hydraulic engineering |
| Wasserfall | waterfall cascade cataract |
| Wasserhahn | faucet water tap |
| Wasserkran | water faucet |
| Wasserlauf | watercourse |
| Wasserrad | waterwheel |
| Wassertrog | water trough |
| Wasserturm | water tower |
| Wasserung | water landing |
| Wasserwerk | water utility water works waterworks |
| wasserarm | arid |